package com.pzhu.controller;

import com.alibaba.fastjson.JSON;
import com.baomidou.mybatisplus.core.conditions.query.LambdaQueryWrapper;
import com.baomidou.mybatisplus.extension.api.R;
import com.pzhu.domain.Race;
import com.pzhu.service.ServiceRace;
import lombok.extern.slf4j.Slf4j;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.beans.factory.annotation.Value;
import org.springframework.web.bind.annotation.*;
import org.springframework.web.multipart.MultipartFile;

import javax.servlet.http.HttpSession;
import java.io.File;
import java.io.IOException;
import java.util.List;
import java.util.UUID;

@RestController
//@RequestMapping("/")
@Slf4j
@CrossOrigin
public class RaceController {
    @Value("${pzhu.path}")
    private String pathbase;
    @Autowired
    private ServiceRace serviceRace;
    @PostMapping("/upload")
    public String upload(MultipartFile file, HttpSession session){
        //file是一个临时文件，需要转存到指定位置，否则本次请求完成后临时文件会删除
        log.info(file.toString());

        //原始文件名
        String originalFilename = file.getOriginalFilename();//abc.jpg
        String suffix = originalFilename.substring(originalFilename.lastIndexOf("."));

        //使用UUID重新生成文件名，防止文件名称重复造成文件覆盖
        String fileName = UUID.randomUUID().toString() + suffix+".jpg";//dfsdfdfd.jpg

        //创建一个目录对象
        File dir = new File(pathbase);
        //判断当前目录是否存在
        if(!dir.exists()){
            //目录不存在，需要创建
            dir.mkdirs();
        }

        try {
            //将临时文件转存到指定位置
            file.transferTo(new File(pathbase,fileName));
        } catch (IOException e) {
            e.printStackTrace();
        }
        System.out.println(fileName);
        session.setAttribute("cert",fileName);
       return null;
    }
    @PostMapping("/student")
    public String student(@RequestBody Race race,HttpSession session){
       race.setCert((String) session.getAttribute("cert"));
        serviceRace.save(race);
        return null;
    }
    @GetMapping("/selectall")
    public String selectall(){

    LambdaQueryWrapper wrapper = new LambdaQueryWrapper();
    wrapper.select();
    List <Race> list = serviceRace.list(wrapper);
    String jsonString = JSON.toJSONString(list);
    for (Race race : list) {
        System.out.println(race);
    }

            return jsonString;
}
}
